10 February 1999 Measurement of SO2 and SO3 using a tunable diode laser system
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Proceedings Volume 3534, Environmental Monitoring and Remediation Technologies; (1999); doi: 10.1117/12.339057
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States
We describe the set-up and operation of a mid-infrared (lead- salt) tunable diode laser system used to measure SO2 and SO3 levels in the exhaust plume of an aircraft engine in an altitude test chamber. These measurements were part of an on-going effort to determine the sulfur emission and conversion of SO2 to SO3 in a representative exhaust under different altitudes, power conditions, and fuel sulfur loadings. Results obtained using this set-up demonstrate the ability to measure SO2 concentrations in the low ppmv range and the possibility of detecting SO3 when it is present at similar levels.
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Timothy A. Berkoff, Joda C. Wormhoudt, R. C. Miake-Lye, "Measurement of SO2 and SO3 using a tunable diode laser system", Proc. SPIE 3534, Environmental Monitoring and Remediation Technologies, (10 February 1999); doi: 10.1117/12.339057; https://doi.org/10.1117/12.339057



Semiconductor lasers

Tunable diode lasers

Laser systems engineering



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